Filter-valve



(No'Model.)

E. BURHORN.

. FILTER VALVE. No. 423.122. Patented Mar. 11', 1890.

FIERA.-

WITNESSESE UNITED STATES PATENT OFFICE.

EDIVIN BURIIORN, OF PHILADELPHIA, PENNSYLVANIA.

FILTER-VALVE.

SPECIFICATION forming part of Letters Patent No. 423,122, dated March 11, 1890.

Application filed lune 21, 1889. Serial No. 315,076. (No model.)

To @ZZ whom it may concern:

Be it known that I, EDWIN BURHORN, of the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Filter-Valve, of which the following isa true and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to the construction of a valve for filters by which the fiow of water can be reversed at will, or, if desired, shut off; and my object is to provide a valve of this kind which shall be easily operated andhave little tendency to get out of order.

My new device will be best understood after a description of the drawings, and its novel features will be hereinafter clearly pointed out in the claim.

Reference being now had to the drawings, Figure lis a central vertical section through my new valve set for filtering, showing also the upper portions of a filter, to which it is attached. Fig. 2 is a similar view with the valve set to close the fiow of water. Fig. 3 is a sectional view of the valvecasing on the line .fr showing also, but not in section, the conical cock or plug. Fig. 4L shows the valve set to reverse the current of water through thefilter and allow the water to fiow to waste; and Fig. 5 shows the valve set to direct the water through the filter in the normal direction, but allow it to flow to waste, instead of' into the service-pipe, as in Fig. l.

A is the lter, A being the chamber into which the filtered water flows, and A2 the ltering-chamber, a being the diaphragm,which divides chambers A and A2, and B B, dre., pipes leading from the bottom of chamber A2 into chamber A.

C is the valve-casing, having a conical seat D for the valve, in which seat are formed ports d, d', d2, d3, and d4, leading, respectively, into the snpplypipe F, a pipe G, connected 4 to the top of the filter-chamber, the wastepipe I-I, the service-pipe I, and the pipe J, leading from the waterdeservoir A. The ports d d, &c., are arranged as shown, and the conical valve E, which turns in seat D, has a partition formed across it by the flanges c and e', of which e is broad enough on its face to close both the ports d2 and da, while the face of e is only broad enough to cover one port d at a time. N are thus formed in the valve E. A bar e2, having a face broad enough to cover a single port, is extended across the chamber N, as shown. The relative arrangement of the ports CZ cl,l&c., and of the arms e e e2 are important features of my invention.

When the valve is in the position shown in Fig. l, the water passes from supply-pipe F into chamber M, thence through port D into pipe G, and thence through connecting-pipe K into filter-chamber A2, from the bottom of which it rises through pipes B into chamber A', and thence through pipe J it passes into chamber N of the valve, and out through port d3 to the service-main I. The Wasteport d2 is in this position ofthe valve covered by arm e. Vhen I desire to shut od the flow of water, I turn the valve into the position shown in Fig. 2, the arm e closing the service-port d and the cross-bar e2 closing the deliveryport di, while ports d2 d3 are closed by arm e.

To reverse the current of water through the lter, I turn the valve into the position shown in Fig d. The water then enters from port d into chamber N, passes through port d4 and pipe .I into chamber A', thence through pipes B, chamber A2, pipes K and G, and port d into chamber M, and out through port d2 to waste-pipe H, the service-pipe being closed by arm e. After reversing the current it is desirable that after resuming the normal direction of flow the water should be run to waste until the filter is cleaned of the unfiltered water, and this I accomplish by turning the cock to the position shown in Fig. 5,which causes the water to fiow as described with reference to Fig. l, except that the servicepipe is closed by bar e2 and the arm e thrown over so as to open the wasteport d2.

In an application filed by me April l2, 1889, Serial No. 307,022, I have described a valve somewhat similar in principle to the one which Two chambers M and forms the snbjectnnatter of this application; i

IOO

of ports, the difference being provided for by increasing the length of the ports d CZ', duc. The pipe or conduit sections F, H, and I, dac., are preferably made to open at each end of the Valve-casing C, which they surround, so that connections may be inade with them at either side, the end not connected being closed' by a plug or cap.

Having noT described my invention, what I claim as new, and desire to secure by Letters Patent, is

A filter-valve havinga conical seat D, with ports d, d', (Z2, cl3, and d4 leading from it and arranged as specified, in combination with a conical cock E, divided into chambers M and N by arms e e and having a bar e2 extending across chamber N, said arms and bar being arranged and constructed as described.

EDWIN BURHORN.

Witnesses:

EDWARD FELL LUKENS, FRANCIS T. CHAMBERS. 

